futility; waste; uselessness; pointlessness; idleness
unwanted hair; superfluous hair
waste (of money, time, etc.); squandering; frittering away
dying in vain; useless death; meaningless death
barking over nothing (of a dog); barking at passers-by or visitors
eating between meals; wasteful eating habits; waste of resources; living idly; loafing one's way through life
blossom which fails to produce fruit; non-fruit-bearing flower